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Editorial Team
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Asked: 2026-06-03T17:37:25+00:00

I have table like below ID User Date Location 1 Tom 6-Mar-2012 US 2

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I have table like below

ID User Date        Location
1  Tom  6-Mar-2012  US
2  Tom  4-Feb-2012  UK
3  Tom  6-Jan-2012  Uk
4  Bob  6-Mar-2012  UK
5  Bob  4-Feb-2012  UK
6  Bob  6-Jan-2012  AUS
7  Dev  6-Mar-2012  US
8  Dev  4-Feb-2012  AUS
9  Nic  6-Jan-2012  US

I have to get each employee recent location in same table.

ID User Date        Location CurrentLocation
1  Tom  6-Mar-2012  US       US
2  Tom  4-Feb-2012  UK       US
3  Tom  6-Jan-2012  Uk       US
4  Bob  6-Mar-2012  UK       UK
5  Bob  4-Feb-2012  UK       UK
6  Bob  6-Jan-2012  AUS      UK
7  Dev  6-Mar-2012  US       US
8  Dev  4-Feb-2012  AUS      US
9  Nic  6-Jan-2012  US       US

I have tired with temp tables. can I get this done using single query. This is in middle of implementation. I have already created many temp tables.

Thanks in Advance.

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1 Answer

  1. Editorial Team

    Try this:

    select *, CurrentLocation
from tbl x

outer apply
(
  select top 1 location as CurrentLocation
  from tbl
  where [user] = x.[user]
    and id <= x.id
  order by id

) y

order by id

    Output:

    ID      USER    DATE            LOCATION    CURRENTLOCATION
1       Tom     2012-03-06      US          US
2       Tom     2012-02-04      UK          US
3       Tom     2012-01-06      Uk          US
4       Bob     2012-03-06      UK          UK
5       Bob     2012-02-04      UK          UK
6       Bob     2012-01-06      AUS         UK
7       Dev     2012-03-06      US          US
8       Dev     2012-02-04      AUS         US
9       Nic     2012-01-06      US          US

    Live test: http://www.sqlfiddle.com/#!3/83a6a/7

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